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9b12e4fe JC |
1 | // Copyright 2009 The Go Authors. All rights reserved. |
2 | // Use of this source code is governed by a BSD-style | |
3 | // license that can be found in the LICENSE file. | |
4 | ||
5 | // +build amd64,darwin | |
6 | ||
7 | package unix | |
8 | ||
9 | import ( | |
10 | "syscall" | |
11 | "unsafe" | |
12 | ) | |
13 | ||
14 | //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) | |
15 | ||
16 | func Getpagesize() int { return 4096 } | |
17 | ||
18 | func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } | |
19 | ||
20 | func NsecToTimespec(nsec int64) (ts Timespec) { | |
21 | ts.Sec = nsec / 1e9 | |
22 | ts.Nsec = nsec % 1e9 | |
23 | return | |
24 | } | |
25 | ||
26 | func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 } | |
27 | ||
28 | func NsecToTimeval(nsec int64) (tv Timeval) { | |
29 | nsec += 999 // round up to microsecond | |
30 | tv.Usec = int32(nsec % 1e9 / 1e3) | |
31 | tv.Sec = int64(nsec / 1e9) | |
32 | return | |
33 | } | |
34 | ||
35 | //sysnb gettimeofday(tp *Timeval) (sec int64, usec int32, err error) | |
36 | func Gettimeofday(tv *Timeval) (err error) { | |
37 | // The tv passed to gettimeofday must be non-nil | |
38 | // but is otherwise unused. The answers come back | |
39 | // in the two registers. | |
40 | sec, usec, err := gettimeofday(tv) | |
41 | tv.Sec = sec | |
42 | tv.Usec = usec | |
43 | return err | |
44 | } | |
45 | ||
46 | func SetKevent(k *Kevent_t, fd, mode, flags int) { | |
47 | k.Ident = uint64(fd) | |
48 | k.Filter = int16(mode) | |
49 | k.Flags = uint16(flags) | |
50 | } | |
51 | ||
52 | func (iov *Iovec) SetLen(length int) { | |
53 | iov.Len = uint64(length) | |
54 | } | |
55 | ||
56 | func (msghdr *Msghdr) SetControllen(length int) { | |
57 | msghdr.Controllen = uint32(length) | |
58 | } | |
59 | ||
60 | func (cmsg *Cmsghdr) SetLen(length int) { | |
61 | cmsg.Len = uint32(length) | |
62 | } | |
63 | ||
64 | func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { | |
65 | var length = uint64(count) | |
66 | ||
67 | _, _, e1 := Syscall6(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 0, 0) | |
68 | ||
69 | written = int(length) | |
70 | ||
71 | if e1 != 0 { | |
72 | err = e1 | |
73 | } | |
74 | return | |
75 | } | |
76 | ||
77 | func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) | |
78 | ||
79 | // SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions | |
80 | // of darwin/amd64 the syscall is called sysctl instead of __sysctl. | |
81 | const SYS___SYSCTL = SYS_SYSCTL |